TEST 1 Flashcards
What are the THREE states of MATTER and an example for each
- Solid-land
- Liquid-water
- Gas-air
4 Properties of GAS
- Flows freely
- Low density
- easy to compress
- NO surface
3 Properties of SOLID
- Medium to high density
- difficult to compress
- rigid surface
4 Properties of LIQUID
- Flows freely
- medium density
- difficult to compress
- has surface
Atom
The tiny fundamental particle or unit of matter
An atom further reduced into smaller particles?
- protons
- neutrons
- electrons
What is the charge of a PROTON and where is it located?
POSITIVE (+) CHARGE
-located in the nucleus with neutrons
______ and ______ can be found in the nucleus of an atom.
PROTONS and NEUTRONS
What is the charge of a NEUTRON and where is it located?
NEUTRON (NO charge)
-located in the nucleus with protons
What is the charge of an ELECTRON and where is it located?
ELECTRON (-) charge
- located in OUTER SHELL
- can only be seven in outer shell
A max total of ____ electrons can be found in the outer shell of an atom.
7
For a neutral atom, the number of _____ equals the number of ______.
For a neutral atom, the number of PROTONS equals the number of ELECTRONS.
How many known elements are there?
105
How many elements are man made?
17
Element
Has same number of PROTONS
A substance that has the same number of PROTONS
Element
The tiny fundamental particle or unit of matter
Atom
Molecule
Two or more atoms joined by chemical bonds H2O
Two or more atoms joined by chemical bonds H2O
Molecule
Matter
Anything that occupies space and has mass
Anything that occupies space and has mass
Matter
Energy
Ability to do work and overcome resistance
Ability to do work and overcome resistance
Energy
Heat, light, electricity and radiation are all examples of what?
Energy
When does the production of energy occur?
When matter is altered by natural or artificial means
When matter is altered by natural or artificial means, what occurs?
The production of energy
